Atmospheric methane levels are of interest due to its impact on climate change. Atmospheric methane is one of the most potent and influential
greenhouse gases on Earth. The 100-year global warming potential of methane is 25[citation needed], i.e. over a 100-year period, it traps 25 times
more heat per mass unit than carbon dioxide.

Early in the Earth's history—about 3.5 billion years ago—there was 1,000 times as much methane in the atmosphere as there is now. The
earliest methane was released into the atmosphere by volcanic activity. During this time, Earth's earliest life appeared. These first, ancient
bacteria added to the methane concentration by converting hydrogen and carbon dioxide into methane and water. Oxygen did not become a major part of
the atmosphere until photosynthetic organisms evolved later in Earth's history. With no oxygen, methane stayed in the atmosphere longer and at higher
concentrations than it does today.

Is there more space debris coming in, more cosmic rays, more fireballs? What do you think ATS?

Scientists have discovered an unidentified source of high-energy cosmic rays bombarding Earth from space. They say it must be close to the solar
system and it could be made of dark matter. “This is a big discovery,” says John Wefel of Louisiana State University and Principal Investigator
for ATIC, Advanced Thin Ionization Calorimeter, a NASA funded balloon-borne instrument high over Antarctica. “It’s the first time we’ve seen a
discrete source of accelerated cosmic rays standing out from the general galactic background.” The new results show an unexpected surplus of cosmic
ray electrons at very high energy — 300-800 billion electron volts — that must come from a previously unidentified source or from the annihilation
of very exotic theoretical particles used to explain dark matter. “This electron excess cannot be explained by the standard model of cosmic ray
origin,” said Wefel. “There must be another source relatively near us that is producing these additional particles.” Read more:
www.universetoday.com...

In this video below it does appear to be some kind of fireball action. Thoughts?

An officer at the Los Angeles Police Department's North Hollywood station said police searched the area for a half an hour Tuesday night but had
no luck in determining what caused the sound. The officer said police received numerous calls about the noise. At about 9:30 p.m., numerous people
began tweeting about a loud explosion. Some thought it had come from a North Hollywood Metro station; others reported hearing an explosion in Studio
City. "Mysterious explosion a few minutes ago. What's going on? #LA" tweeted @ThatVitalSpark. "Seriously, any leads what the hell this boom was in
North Hollywood? Im shook up a bit" tweeted @RajRawal37. A Reddit user posed the question: "What just blew up in North Hollywood?" By 6 a.m., there
were more than 120 comments, but no crowd-sourced answer. However, possibilities ranging from alien invasions to meteors were proposed. Can you solve
the case? Let us know in the comments section below or by tweeting @lanow.

Salem and Marblehead police officers searched the area of Ocean Avenue early Saturday morning for evidence of what could have caused the large
boom that prompted residents across the area to call 911. According to Sunday morning's Salem police log, At 1:34 a.m., police received multiple
calls regarding a "loud bang" on Ocean Avenue. They were unable to locate the source.

LEXINGTON COUNTY, SC (WIS) - Residents of Red Bank in Lexington County appear to have gotten a loud awakening Thursday morning as multiple reports
indicate a loud booming noise in the area. WIS News 10 viewers poured onto our Facebook page this morning to report the sound. "What was the horrific
boom in the Redbank area," asked Lisa Russell Fields. "People are saying it sounded like a plane crash or explosion." "I also heard the "big
boom" this morning. So did a lot of other people, it sounds like a close cannon or something and will shake the whole building/house," said Jennifer
Lee Stokes Kleine. "Does anyone have a concrete explanation for the loud boom that shook houses in Lexington County around the Redbank/YMCA/Old
Barnwell Road area this morning around 8:30 a.m.," said Mary Frances Henry Bell. So, what was it? The Lexington County Sheriff's Department doesn't
know either. "Law enforcement officers and public safety personnel have been unable so far to determine the source of the noise," said Sheriff's
Department spokesman Maj. John Allard. "No explosions have been reported." A similarly loud explosive noise happened last year in the South Congaree
portion of Lexington County.

“We don’t really know what this was. We don’t have the operational capability to even locate something like this, so we can’t say where it
came from. We just don’t know,” Whidden said. People in Wyoming, Indiana, Oklahoma and California also reported hearing a boom similar to what was
heard in Utah.

It is interesting the noises started up again in January, same as last year. The Lexington County, SC area where the sounds were reported are in a
rural area. The ocean used to come inland as far as that point of area in the past. As far as I know the closest dormant volcanos are in North
Carolina, and are mudd flats.

I've heard them on a few occasions here in CO: Sept. 2011, a few months ago, and a couple of days ago. They sound like canons being shot off. I
even reported them to the police dept recently, they dug around and couldn't even find companies with drilling permits in the county, I mean, they
LOOKED for the source, found none. I reported them to the USGS in sept 2011 because they shook my house and set off all the car alarms on my street,
said i felt a 2-something quake 200 miles away.

As someone who has heard them, i'll say they seem to come from the sky AND the ground. I think
they come from the ground and the sound sort of ricochets around, making it sound like they come from everywhere and nowhere.

Do you have any info about the first video? Im 90% sure the audio is taken from 9/11 footage of the second plane impact. No clue what the lights could
be though. I wish i could link the specific video but im on an iphone right now.
I searched "9/11 second plane close"

Still cannot find evidence the video sound is from 9-11. The screeching sound, I don't think so and also not so sure there are not a lot of car
alarms going on in the distance or fire engines going out to check for anything as the reports were coming in of "blast" sounds. I just don't
know.... but what I do know is its happening everywhere and possibly more frequent.

Still cannot find evidence the video sound is from 9-11. The screeching sound, I don't think so and also not so sure there are not a lot of car
alarms going on in the distance or fire engines going out to check for anything as the reports were coming in of "blast" sounds. I just don't
know.... but what I do know is its happening everywhere and possibly more frequent.

I think the video is authentic - he says he started filming after a first boom and then the sirens were going. Also, after one boom you hear a car
alarm go off. Video seems pretty real and pretty creepy.

I'm with you on the methane release and the explosions and booms may be from hydrogen sulfide. Have a whole lot of information collected up on these
sky noises, booms, explosions, animal die-offs and whole lot more over the past few weeks at Dangerous Gas thread here;

Well, objects that enter/re-enter the atmosphere are luminous due to their speed and momentum which keeps them moving forward at hyper-velocity. When
they slow down too much, they cease to be luminous, and they succumb to gravity, which means their trajectories become more and more vertical. Also,
for a meteoroid to enter the atmosphere at a very high angle is suicide - even for the harder objects, hitting the atmosphere square-on at the kind of
speeds they travel at is like throwing an egg at a brick wall.

With these objects, it appears that they are falling vertically, which suggests that they are relatively low down in the atmosphere, unlike
fireballs/meteors which occur at relatively high altitudes (10's of km) - even the quite big ones.

Whilst it is possible that to an observer on the ground a fireball or meteor will appear to travel directly downwards, in real life, it's quite rare
to see, so that suggests what we are looking at is something terrestrial in nature that is falling in the every day sense of the word, and relatively
close to the ground.

That, and in 15 years of observing meteors/fireballs, trying to photograph them, and having seen hundreds of videos of fireballs, it does not look
like a fireball to me.

Hmmm.... Ok well I understand kind now where you are coming from and I agree, however I don't think it was any kind of fireworks either. A flare?
Hmmmm... no.... it kind of does but the behavior is slightly different than a flare as well, in my opinion anyway.

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